Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
020023goodexcellent41excellent
010023goodexcellent31excellent
000014goodexcellent21excellent
230014goodexcellent21excellent
22008excellentexcellent11excellent
21006excellentexcellent11excellent
20008excellentexcellent21excellent
19008excellentexcellent21excellent
18007excellentexcellent11excellent
17006excellentexcellent11excellent
16004excellentexcellent11excellent
15003excellentexcellent11excellent
14004excellentexcellent11excellent
13004excellentexcellent11excellent
12004excellentexcellent11excellent
11005excellentexcellent11excellent
10004excellentexcellent11excellent
09006excellentexcellent11excellent
08008excellentexcellent11excellent
07007excellentexcellent11excellent
06005excellentexcellent11excellent
05003excellentexcellent11excellent
04008excellentexcellent21excellent
030021goodexcellent41excellent